A compact PET detector array using wavelength shifting fibres

被引：0

作者：

Herbert, DJ ^{[1
]}

Meng, LJ ^{[1
]}

Dallimore, M ^{[1
]}

Ramsden, D ^{[1
]}

机构：

[1] Univ Southampton, Dept Phys & Astron, Southampton SO14 1BJ, Hants, England

来源：

1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3 | 1999年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The basis for a design of a high-resolution PET imaging system, utilising a wavelength-shifting (WLS) fibre readout technique is presented here. Scintillation light is transported from the individual LSO pixels in the detector array through the WLS fibres to a multi-pixel hybrid photodiode (M-HPD). Each detector array consists of a number of 2x2x10mm LSO crystals viewed by two orthogonal ribbons of WLS fibres. An array of as many as 30x31 crystals can thus be read-out by a single, small 61-pixel M-HPD tube. The design is both compact, inexpensive and suitable for application not only in the field of small-animal PET or in a dedicated PEM system, but could also operate in a combined PET/MRI system. Initial tests have shown that the signal level generated at the detector by a single 511 keV energy-deposit, is 20 similar to 25 photoelectrons. Separate tests have indicated that, at this signal-level, a resolving time of similar to 25ns could be achievable.

引用

页码：1304 / 1308

页数：3

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